diff options
Diffstat (limited to 'drivers/media/platform/mediatek/mdp3/mtk-mdp3-m2m.c')
| -rw-r--r-- | drivers/media/platform/mediatek/mdp3/mtk-mdp3-m2m.c | 730 |
1 files changed, 730 insertions, 0 deletions
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-m2m.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-m2m.c new file mode 100644 index 000000000..8612a48bd --- /dev/null +++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-m2m.c @@ -0,0 +1,730 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022 MediaTek Inc. + * Author: Ping-Hsun Wu <ping-hsun.wu@mediatek.com> + */ + +#include <linux/platform_device.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-event.h> +#include <media/videobuf2-dma-contig.h> +#include "mtk-mdp3-m2m.h" + +static inline struct mdp_m2m_ctx *fh_to_ctx(struct v4l2_fh *fh) +{ + return container_of(fh, struct mdp_m2m_ctx, fh); +} + +static inline struct mdp_m2m_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl) +{ + return container_of(ctrl->handler, struct mdp_m2m_ctx, ctrl_handler); +} + +static inline struct mdp_frame *ctx_get_frame(struct mdp_m2m_ctx *ctx, + enum v4l2_buf_type type) +{ + if (V4L2_TYPE_IS_OUTPUT(type)) + return &ctx->curr_param.output; + else + return &ctx->curr_param.captures[0]; +} + +static inline void mdp_m2m_ctx_set_state(struct mdp_m2m_ctx *ctx, u32 state) +{ + atomic_or(state, &ctx->curr_param.state); +} + +static inline bool mdp_m2m_ctx_is_state_set(struct mdp_m2m_ctx *ctx, u32 mask) +{ + return ((atomic_read(&ctx->curr_param.state) & mask) == mask); +} + +static void mdp_m2m_process_done(void *priv, int vb_state) +{ + struct mdp_m2m_ctx *ctx = priv; + struct vb2_v4l2_buffer *src_vbuf, *dst_vbuf; + + src_vbuf = (struct vb2_v4l2_buffer *) + v4l2_m2m_src_buf_remove(ctx->m2m_ctx); + dst_vbuf = (struct vb2_v4l2_buffer *) + v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); + ctx->curr_param.frame_no = ctx->frame_count[MDP_M2M_SRC]; + src_vbuf->sequence = ctx->frame_count[MDP_M2M_SRC]++; + dst_vbuf->sequence = ctx->frame_count[MDP_M2M_DST]++; + v4l2_m2m_buf_copy_metadata(src_vbuf, dst_vbuf, true); + + v4l2_m2m_buf_done(src_vbuf, vb_state); + v4l2_m2m_buf_done(dst_vbuf, vb_state); + v4l2_m2m_job_finish(ctx->mdp_dev->m2m_dev, ctx->m2m_ctx); +} + +static void mdp_m2m_device_run(void *priv) +{ + struct mdp_m2m_ctx *ctx = priv; + struct mdp_frame *frame; + struct vb2_v4l2_buffer *src_vb, *dst_vb; + struct img_ipi_frameparam param = {}; + struct mdp_cmdq_param task = {}; + enum vb2_buffer_state vb_state = VB2_BUF_STATE_ERROR; + int ret; + + if (mdp_m2m_ctx_is_state_set(ctx, MDP_M2M_CTX_ERROR)) { + dev_err(&ctx->mdp_dev->pdev->dev, + "mdp_m2m_ctx is in error state\n"); + goto worker_end; + } + + param.frame_no = ctx->curr_param.frame_no; + param.type = ctx->curr_param.type; + param.num_inputs = 1; + param.num_outputs = 1; + + frame = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); + src_vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx); + mdp_set_src_config(¶m.inputs[0], frame, &src_vb->vb2_buf); + + frame = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); + dst_vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); + mdp_set_dst_config(¶m.outputs[0], frame, &dst_vb->vb2_buf); + + ret = mdp_vpu_process(&ctx->vpu, ¶m); + if (ret) { + dev_err(&ctx->mdp_dev->pdev->dev, + "VPU MDP process failed: %d\n", ret); + goto worker_end; + } + + task.config = ctx->vpu.config; + task.param = ¶m; + task.composes[0] = &frame->compose; + task.cmdq_cb = NULL; + task.cb_data = NULL; + task.mdp_ctx = ctx; + + ret = mdp_cmdq_send(ctx->mdp_dev, &task); + if (ret) { + dev_err(&ctx->mdp_dev->pdev->dev, + "CMDQ sendtask failed: %d\n", ret); + goto worker_end; + } + + return; + +worker_end: + mdp_m2m_process_done(ctx, vb_state); +} + +static int mdp_m2m_start_streaming(struct vb2_queue *q, unsigned int count) +{ + struct mdp_m2m_ctx *ctx = vb2_get_drv_priv(q); + struct mdp_frame *capture; + struct vb2_queue *vq; + int ret; + bool out_streaming, cap_streaming; + + if (V4L2_TYPE_IS_OUTPUT(q->type)) + ctx->frame_count[MDP_M2M_SRC] = 0; + + if (V4L2_TYPE_IS_CAPTURE(q->type)) + ctx->frame_count[MDP_M2M_DST] = 0; + + capture = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); + vq = v4l2_m2m_get_src_vq(ctx->m2m_ctx); + out_streaming = vb2_is_streaming(vq); + vq = v4l2_m2m_get_dst_vq(ctx->m2m_ctx); + cap_streaming = vb2_is_streaming(vq); + + /* Check to see if scaling ratio is within supported range */ + if ((V4L2_TYPE_IS_OUTPUT(q->type) && cap_streaming) || + (V4L2_TYPE_IS_CAPTURE(q->type) && out_streaming)) { + ret = mdp_check_scaling_ratio(&capture->crop.c, + &capture->compose, + capture->rotation, + ctx->curr_param.limit); + if (ret) { + dev_err(&ctx->mdp_dev->pdev->dev, + "Out of scaling range\n"); + return ret; + } + } + + if (!mdp_m2m_ctx_is_state_set(ctx, MDP_VPU_INIT)) { + ret = mdp_vpu_get_locked(ctx->mdp_dev); + if (ret) + return ret; + + ret = mdp_vpu_ctx_init(&ctx->vpu, &ctx->mdp_dev->vpu, + MDP_DEV_M2M); + if (ret) { + dev_err(&ctx->mdp_dev->pdev->dev, + "VPU init failed %d\n", ret); + return -EINVAL; + } + mdp_m2m_ctx_set_state(ctx, MDP_VPU_INIT); + } + + return 0; +} + +static struct vb2_v4l2_buffer *mdp_m2m_buf_remove(struct mdp_m2m_ctx *ctx, + unsigned int type) +{ + if (V4L2_TYPE_IS_OUTPUT(type)) + return (struct vb2_v4l2_buffer *) + v4l2_m2m_src_buf_remove(ctx->m2m_ctx); + else + return (struct vb2_v4l2_buffer *) + v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); +} + +static void mdp_m2m_stop_streaming(struct vb2_queue *q) +{ + struct mdp_m2m_ctx *ctx = vb2_get_drv_priv(q); + struct vb2_v4l2_buffer *vb; + + vb = mdp_m2m_buf_remove(ctx, q->type); + while (vb) { + v4l2_m2m_buf_done(vb, VB2_BUF_STATE_ERROR); + vb = mdp_m2m_buf_remove(ctx, q->type); + } +} + +static int mdp_m2m_queue_setup(struct vb2_queue *q, + unsigned int *num_buffers, + unsigned int *num_planes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct mdp_m2m_ctx *ctx = vb2_get_drv_priv(q); + struct v4l2_pix_format_mplane *pix_mp; + u32 i; + + pix_mp = &ctx_get_frame(ctx, q->type)->format.fmt.pix_mp; + + /* from VIDIOC_CREATE_BUFS */ + if (*num_planes) { + if (*num_planes != pix_mp->num_planes) + return -EINVAL; + for (i = 0; i < pix_mp->num_planes; ++i) + if (sizes[i] < pix_mp->plane_fmt[i].sizeimage) + return -EINVAL; + } else {/* from VIDIOC_REQBUFS */ + *num_planes = pix_mp->num_planes; + for (i = 0; i < pix_mp->num_planes; ++i) + sizes[i] = pix_mp->plane_fmt[i].sizeimage; + } + + return 0; +} + +static int mdp_m2m_buf_prepare(struct vb2_buffer *vb) +{ + struct mdp_m2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + struct v4l2_pix_format_mplane *pix_mp; + struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb); + u32 i; + + v4l2_buf->field = V4L2_FIELD_NONE; + + if (V4L2_TYPE_IS_CAPTURE(vb->type)) { + pix_mp = &ctx_get_frame(ctx, vb->type)->format.fmt.pix_mp; + for (i = 0; i < pix_mp->num_planes; ++i) { + vb2_set_plane_payload(vb, i, + pix_mp->plane_fmt[i].sizeimage); + } + } + return 0; +} + +static int mdp_m2m_buf_out_validate(struct vb2_buffer *vb) +{ + struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb); + + v4l2_buf->field = V4L2_FIELD_NONE; + + return 0; +} + +static void mdp_m2m_buf_queue(struct vb2_buffer *vb) +{ + struct mdp_m2m_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb); + + v4l2_buf->field = V4L2_FIELD_NONE; + + v4l2_m2m_buf_queue(ctx->m2m_ctx, to_vb2_v4l2_buffer(vb)); +} + +static const struct vb2_ops mdp_m2m_qops = { + .queue_setup = mdp_m2m_queue_setup, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, + .buf_prepare = mdp_m2m_buf_prepare, + .start_streaming = mdp_m2m_start_streaming, + .stop_streaming = mdp_m2m_stop_streaming, + .buf_queue = mdp_m2m_buf_queue, + .buf_out_validate = mdp_m2m_buf_out_validate, +}; + +static int mdp_m2m_querycap(struct file *file, void *fh, + struct v4l2_capability *cap) +{ + strscpy(cap->driver, MDP_MODULE_NAME, sizeof(cap->driver)); + strscpy(cap->card, MDP_DEVICE_NAME, sizeof(cap->card)); + + return 0; +} + +static int mdp_m2m_enum_fmt_mplane(struct file *file, void *fh, + struct v4l2_fmtdesc *f) +{ + return mdp_enum_fmt_mplane(f); +} + +static int mdp_m2m_g_fmt_mplane(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct mdp_m2m_ctx *ctx = fh_to_ctx(fh); + struct mdp_frame *frame; + struct v4l2_pix_format_mplane *pix_mp; + + frame = ctx_get_frame(ctx, f->type); + *f = frame->format; + pix_mp = &f->fmt.pix_mp; + pix_mp->colorspace = ctx->curr_param.colorspace; + pix_mp->xfer_func = ctx->curr_param.xfer_func; + pix_mp->ycbcr_enc = ctx->curr_param.ycbcr_enc; + pix_mp->quantization = ctx->curr_param.quant; + + return 0; +} + +static int mdp_m2m_s_fmt_mplane(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct mdp_m2m_ctx *ctx = fh_to_ctx(fh); + struct mdp_frame *frame = ctx_get_frame(ctx, f->type); + struct mdp_frame *capture; + const struct mdp_format *fmt; + struct vb2_queue *vq; + + fmt = mdp_try_fmt_mplane(f, &ctx->curr_param, ctx->id); + if (!fmt) + return -EINVAL; + + vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); + if (vb2_is_busy(vq)) + return -EBUSY; + + frame->format = *f; + frame->mdp_fmt = fmt; + frame->ycbcr_prof = mdp_map_ycbcr_prof_mplane(f, fmt->mdp_color); + frame->usage = V4L2_TYPE_IS_OUTPUT(f->type) ? + MDP_BUFFER_USAGE_HW_READ : MDP_BUFFER_USAGE_MDP; + + capture = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); + if (V4L2_TYPE_IS_OUTPUT(f->type)) { + capture->crop.c.left = 0; + capture->crop.c.top = 0; + capture->crop.c.width = f->fmt.pix_mp.width; + capture->crop.c.height = f->fmt.pix_mp.height; + ctx->curr_param.colorspace = f->fmt.pix_mp.colorspace; + ctx->curr_param.ycbcr_enc = f->fmt.pix_mp.ycbcr_enc; + ctx->curr_param.quant = f->fmt.pix_mp.quantization; + ctx->curr_param.xfer_func = f->fmt.pix_mp.xfer_func; + } else { + capture->compose.left = 0; + capture->compose.top = 0; + capture->compose.width = f->fmt.pix_mp.width; + capture->compose.height = f->fmt.pix_mp.height; + } + + return 0; +} + +static int mdp_m2m_try_fmt_mplane(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct mdp_m2m_ctx *ctx = fh_to_ctx(fh); + + if (!mdp_try_fmt_mplane(f, &ctx->curr_param, ctx->id)) + return -EINVAL; + + return 0; +} + +static int mdp_m2m_g_selection(struct file *file, void *fh, + struct v4l2_selection *s) +{ + struct mdp_m2m_ctx *ctx = fh_to_ctx(fh); + struct mdp_frame *frame; + bool valid = false; + + if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) + valid = mdp_target_is_crop(s->target); + else if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + valid = mdp_target_is_compose(s->target); + + if (!valid) + return -EINVAL; + + switch (s->target) { + case V4L2_SEL_TGT_CROP: + if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + frame = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); + s->r = frame->crop.c; + return 0; + case V4L2_SEL_TGT_COMPOSE: + if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + frame = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); + s->r = frame->compose; + return 0; + case V4L2_SEL_TGT_CROP_DEFAULT: + case V4L2_SEL_TGT_CROP_BOUNDS: + if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) + return -EINVAL; + frame = ctx_get_frame(ctx, s->type); + s->r.left = 0; + s->r.top = 0; + s->r.width = frame->format.fmt.pix_mp.width; + s->r.height = frame->format.fmt.pix_mp.height; + return 0; + case V4L2_SEL_TGT_COMPOSE_DEFAULT: + case V4L2_SEL_TGT_COMPOSE_BOUNDS: + if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + frame = ctx_get_frame(ctx, s->type); + s->r.left = 0; + s->r.top = 0; + s->r.width = frame->format.fmt.pix_mp.width; + s->r.height = frame->format.fmt.pix_mp.height; + return 0; + } + return -EINVAL; +} + +static int mdp_m2m_s_selection(struct file *file, void *fh, + struct v4l2_selection *s) +{ + struct mdp_m2m_ctx *ctx = fh_to_ctx(fh); + struct mdp_frame *frame = ctx_get_frame(ctx, s->type); + struct mdp_frame *capture; + struct v4l2_rect r; + struct device *dev = &ctx->mdp_dev->pdev->dev; + bool valid = false; + int ret; + + if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) + valid = (s->target == V4L2_SEL_TGT_CROP); + else if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + valid = (s->target == V4L2_SEL_TGT_COMPOSE); + + if (!valid) { + dev_dbg(dev, "[%s:%d] invalid type:%u target:%u", __func__, + ctx->id, s->type, s->target); + return -EINVAL; + } + + ret = mdp_try_crop(ctx, &r, s, frame); + if (ret) + return ret; + capture = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); + + if (mdp_target_is_crop(s->target)) + capture->crop.c = r; + else + capture->compose = r; + + s->r = r; + + return 0; +} + +static const struct v4l2_ioctl_ops mdp_m2m_ioctl_ops = { + .vidioc_querycap = mdp_m2m_querycap, + .vidioc_enum_fmt_vid_cap = mdp_m2m_enum_fmt_mplane, + .vidioc_enum_fmt_vid_out = mdp_m2m_enum_fmt_mplane, + .vidioc_g_fmt_vid_cap_mplane = mdp_m2m_g_fmt_mplane, + .vidioc_g_fmt_vid_out_mplane = mdp_m2m_g_fmt_mplane, + .vidioc_s_fmt_vid_cap_mplane = mdp_m2m_s_fmt_mplane, + .vidioc_s_fmt_vid_out_mplane = mdp_m2m_s_fmt_mplane, + .vidioc_try_fmt_vid_cap_mplane = mdp_m2m_try_fmt_mplane, + .vidioc_try_fmt_vid_out_mplane = mdp_m2m_try_fmt_mplane, + .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, + .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, + .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, + .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, + .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, + .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, + .vidioc_streamon = v4l2_m2m_ioctl_streamon, + .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, + .vidioc_g_selection = mdp_m2m_g_selection, + .vidioc_s_selection = mdp_m2m_s_selection, + .vidioc_subscribe_event = v4l2_ctrl_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +static int mdp_m2m_queue_init(void *priv, + struct vb2_queue *src_vq, + struct vb2_queue *dst_vq) +{ + struct mdp_m2m_ctx *ctx = priv; + int ret; + + src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; + src_vq->io_modes = VB2_MMAP | VB2_DMABUF; + src_vq->ops = &mdp_m2m_qops; + src_vq->mem_ops = &vb2_dma_contig_memops; + src_vq->drv_priv = ctx; + src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); + src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; + src_vq->dev = &ctx->mdp_dev->pdev->dev; + src_vq->lock = &ctx->ctx_lock; + + ret = vb2_queue_init(src_vq); + if (ret) + return ret; + + dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; + dst_vq->io_modes = VB2_MMAP | VB2_DMABUF; + dst_vq->ops = &mdp_m2m_qops; + dst_vq->mem_ops = &vb2_dma_contig_memops; + dst_vq->drv_priv = ctx; + dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); + dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; + dst_vq->dev = &ctx->mdp_dev->pdev->dev; + dst_vq->lock = &ctx->ctx_lock; + + return vb2_queue_init(dst_vq); +} + +static int mdp_m2m_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct mdp_m2m_ctx *ctx = ctrl_to_ctx(ctrl); + struct mdp_frame *capture; + + capture = ctx_get_frame(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); + switch (ctrl->id) { + case V4L2_CID_HFLIP: + capture->hflip = ctrl->val; + break; + case V4L2_CID_VFLIP: + capture->vflip = ctrl->val; + break; + case V4L2_CID_ROTATE: + capture->rotation = ctrl->val; + break; + } + + return 0; +} + +static const struct v4l2_ctrl_ops mdp_m2m_ctrl_ops = { + .s_ctrl = mdp_m2m_s_ctrl, +}; + +static int mdp_m2m_ctrls_create(struct mdp_m2m_ctx *ctx) +{ + v4l2_ctrl_handler_init(&ctx->ctrl_handler, MDP_MAX_CTRLS); + ctx->ctrls.hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, + &mdp_m2m_ctrl_ops, V4L2_CID_HFLIP, + 0, 1, 1, 0); + ctx->ctrls.vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, + &mdp_m2m_ctrl_ops, V4L2_CID_VFLIP, + 0, 1, 1, 0); + ctx->ctrls.rotate = v4l2_ctrl_new_std(&ctx->ctrl_handler, + &mdp_m2m_ctrl_ops, + V4L2_CID_ROTATE, 0, 270, 90, 0); + + if (ctx->ctrl_handler.error) { + int err = ctx->ctrl_handler.error; + + v4l2_ctrl_handler_free(&ctx->ctrl_handler); + dev_err(&ctx->mdp_dev->pdev->dev, + "Failed to register controls\n"); + return err; + } + return 0; +} + +static int mdp_m2m_open(struct file *file) +{ + struct video_device *vdev = video_devdata(file); + struct mdp_dev *mdp = video_get_drvdata(vdev); + struct mdp_m2m_ctx *ctx; + struct device *dev = &mdp->pdev->dev; + int ret; + struct v4l2_format default_format = {}; + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + if (mutex_lock_interruptible(&mdp->m2m_lock)) { + ret = -ERESTARTSYS; + goto err_free_ctx; + } + + ret = ida_alloc(&mdp->mdp_ida, GFP_KERNEL); + if (ret < 0) + goto err_unlock_mutex; + ctx->id = ret; + + ctx->mdp_dev = mdp; + + v4l2_fh_init(&ctx->fh, vdev); + file->private_data = &ctx->fh; + ret = mdp_m2m_ctrls_create(ctx); + if (ret) + goto err_exit_fh; + + /* Use separate control handler per file handle */ + ctx->fh.ctrl_handler = &ctx->ctrl_handler; + v4l2_fh_add(&ctx->fh); + + mutex_init(&ctx->ctx_lock); + ctx->m2m_ctx = v4l2_m2m_ctx_init(mdp->m2m_dev, ctx, mdp_m2m_queue_init); + if (IS_ERR(ctx->m2m_ctx)) { + dev_err(dev, "Failed to initialize m2m context\n"); + ret = PTR_ERR(ctx->m2m_ctx); + goto err_release_handler; + } + ctx->fh.m2m_ctx = ctx->m2m_ctx; + + ctx->curr_param.ctx = ctx; + ret = mdp_frameparam_init(&ctx->curr_param); + if (ret) { + dev_err(dev, "Failed to initialize mdp parameter\n"); + goto err_release_m2m_ctx; + } + + mutex_unlock(&mdp->m2m_lock); + + /* Default format */ + default_format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; + default_format.fmt.pix_mp.width = 32; + default_format.fmt.pix_mp.height = 32; + default_format.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_YUV420M; + mdp_m2m_s_fmt_mplane(file, &ctx->fh, &default_format); + default_format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; + mdp_m2m_s_fmt_mplane(file, &ctx->fh, &default_format); + + dev_dbg(dev, "%s:[%d]", __func__, ctx->id); + + return 0; + +err_release_m2m_ctx: + v4l2_m2m_ctx_release(ctx->m2m_ctx); +err_release_handler: + v4l2_ctrl_handler_free(&ctx->ctrl_handler); + v4l2_fh_del(&ctx->fh); +err_exit_fh: + v4l2_fh_exit(&ctx->fh); + ida_free(&mdp->mdp_ida, ctx->id); +err_unlock_mutex: + mutex_unlock(&mdp->m2m_lock); +err_free_ctx: + kfree(ctx); + + return ret; +} + +static int mdp_m2m_release(struct file *file) +{ + struct mdp_m2m_ctx *ctx = fh_to_ctx(file->private_data); + struct mdp_dev *mdp = video_drvdata(file); + struct device *dev = &mdp->pdev->dev; + + mutex_lock(&mdp->m2m_lock); + v4l2_m2m_ctx_release(ctx->m2m_ctx); + if (mdp_m2m_ctx_is_state_set(ctx, MDP_VPU_INIT)) { + mdp_vpu_ctx_deinit(&ctx->vpu); + mdp_vpu_put_locked(mdp); + } + + v4l2_ctrl_handler_free(&ctx->ctrl_handler); + v4l2_fh_del(&ctx->fh); + v4l2_fh_exit(&ctx->fh); + ida_free(&mdp->mdp_ida, ctx->id); + mutex_unlock(&mdp->m2m_lock); + + dev_dbg(dev, "%s:[%d]", __func__, ctx->id); + kfree(ctx); + + return 0; +} + +static const struct v4l2_file_operations mdp_m2m_fops = { + .owner = THIS_MODULE, + .poll = v4l2_m2m_fop_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = v4l2_m2m_fop_mmap, + .open = mdp_m2m_open, + .release = mdp_m2m_release, +}; + +static const struct v4l2_m2m_ops mdp_m2m_ops = { + .device_run = mdp_m2m_device_run, +}; + +int mdp_m2m_device_register(struct mdp_dev *mdp) +{ + struct device *dev = &mdp->pdev->dev; + int ret = 0; + + mdp->m2m_vdev = video_device_alloc(); + if (!mdp->m2m_vdev) { + dev_err(dev, "Failed to allocate video device\n"); + ret = -ENOMEM; + goto err_video_alloc; + } + mdp->m2m_vdev->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | + V4L2_CAP_STREAMING; + mdp->m2m_vdev->fops = &mdp_m2m_fops; + mdp->m2m_vdev->ioctl_ops = &mdp_m2m_ioctl_ops; + mdp->m2m_vdev->release = mdp_video_device_release; + mdp->m2m_vdev->lock = &mdp->m2m_lock; + mdp->m2m_vdev->vfl_dir = VFL_DIR_M2M; + mdp->m2m_vdev->v4l2_dev = &mdp->v4l2_dev; + snprintf(mdp->m2m_vdev->name, sizeof(mdp->m2m_vdev->name), "%s:m2m", + MDP_MODULE_NAME); + video_set_drvdata(mdp->m2m_vdev, mdp); + + mdp->m2m_dev = v4l2_m2m_init(&mdp_m2m_ops); + if (IS_ERR(mdp->m2m_dev)) { + dev_err(dev, "Failed to initialize v4l2-m2m device\n"); + ret = PTR_ERR(mdp->m2m_dev); + goto err_m2m_init; + } + + ret = video_register_device(mdp->m2m_vdev, VFL_TYPE_VIDEO, -1); + if (ret) { + dev_err(dev, "Failed to register video device\n"); + goto err_video_register; + } + + v4l2_info(&mdp->v4l2_dev, "Driver registered as /dev/video%d", + mdp->m2m_vdev->num); + return 0; + +err_video_register: + v4l2_m2m_release(mdp->m2m_dev); +err_m2m_init: + video_device_release(mdp->m2m_vdev); +err_video_alloc: + + return ret; +} + +void mdp_m2m_device_unregister(struct mdp_dev *mdp) +{ + video_unregister_device(mdp->m2m_vdev); +} + +void mdp_m2m_job_finish(struct mdp_m2m_ctx *ctx) +{ + enum vb2_buffer_state vb_state = VB2_BUF_STATE_DONE; + + mdp_m2m_process_done(ctx, vb_state); +} |